/**
 * Strategy Registry for the Framework Router.
 * Manages strategy registration and lifecycle.
 * @module
 */
import type { BaseStrategy } from "../../strategies/shared/base-strategy.js";
import type { OutputApproach } from "./types.js";
/**
 * Factory function that creates a strategy instance.
 */
type StrategyFactory<TInput, TOutput> = () => BaseStrategy<TInput, TOutput>;
/**
 * Strategy Registry - manages strategy registration and instantiation.
 *
 * Features:
 * - Lazy instantiation for performance
 * - Singleton support for stateless strategies
 * - Version tracking for debugging
 *
 * @example
 * ```typescript
 * registry.register('speckit', () => new SpecKitStrategy(), {
 *   version: '2.0.0',
 *   description: 'Generate project specification artifacts',
 *   singleton: true,
 * });
 *
 * const strategy = registry.get('speckit');
 * ```
 */
export declare class StrategyRegistry {
    private readonly strategies;
    /**
     * Register a strategy factory.
     */
    register<TInput, TOutput>(approach: OutputApproach, factory: StrategyFactory<TInput, TOutput>, options: {
        version: string;
        description: string;
        singleton?: boolean;
    }): void;
    /**
     * Get a strategy instance for an approach.
     *
     * @throws If no strategy registered for approach
     */
    get<TInput, TOutput>(approach: OutputApproach): BaseStrategy<TInput, TOutput>;
    /**
     * Check if an approach is registered.
     */
    has(approach: OutputApproach): boolean;
    /**
     * Get the registered version for an approach.
     */
    getVersion(approach: OutputApproach): string | undefined;
    /**
     * Get metadata for all registered strategies.
     */
    list(): Array<{
        approach: OutputApproach;
        version: string;
        description: string;
    }>;
    /**
     * Clear all registered strategies (for testing).
     */
    clear(): void;
}
/**
 * Default singleton instance.
 */
export declare const strategyRegistry: StrategyRegistry;
export {};
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